Fox Searchlight’s latest pop-indie festival pickup, (500) Days of Summer, is promotionally packaged, as is typical for the distributor, with a hip soundtrack featuring multiple songs from The Smiths and Regina Spektor, as well as tunes from Feist, The Doves and the obligatory Simon and Garfunkel. Though heavily dependent on music, the movie is not a musical, yet like other Searchlight releases it has that one moment where the line between non-musical and musical is just barely crossed.

In the past we’ve seen this moment restricted to diegetic circumstances, whether a dance performance or an in-scene duet of a Moldy Peaches song. But this year Searchlight’s titles have been venturing even further, first with the non-diegetic, Bollywood-influenced song and dance in Slumdog Millionaire and now with an equally fantastical sequence in (500) Days, in which Joseph Gordon-Levitt struts about to Hall and Oates’ “You Make My Dreams,” joined by a surplus of extras and an animated bluebird.

Musical numbers in non-musical movies can certainly work, as is evident in Citizen Kane and many David Lynch and Adam Sandler films, but there’s something very forced and cliché about the sequence in (500) Days. Never mind that it seems lifted out of Enchanted, a movie we very much despise, and never mind that we prefer our Zooey Deschanel movies to feature musical interludes performed by the singer-actress herself rather than lip-synced by her costars (director Marc Webb acknowledges the mistake of not including her in the scene); this number is just completely over-the-top and unoriginal.

In response to the scene, we’ve selected five of the worst musical numbers from non-musical films to show what kind of horrible company (500) Days of Summer is in.

“Danke Schoen”/“Twist and Shout” in Ferris Bueller’s Day Off (1986)

We love Ferris Bueller as much as the next child of the 80s, and we don’t entirely dislike this memorable parade-set musical number. However, we don’t believe it makes a whole lot of sense in the context of the movie. Okay, so maybe Ferris does manage to finagle his way onto a float during the Von Steuben Day Parade. And maybe he even gets to sing along with a couple of tunes. But the realism goes out the window with how popular the number is. For a lip-syncing of an early Beatles tune? We doubt even Ferris could be so popular. The dancers in the crowd are enjoyable, but they help give the scene a level of fantasy that carries the film outside the box it seems to have set for itself. It’s enough to make us almost buy those theories that the entire movie is one big hallucination.

“Swingin on a Star” in Hudson Hawk (1991)

In the early 90s, musicals were probably at their all-time lowest point in terms of audience favor, so for Hudson Hawk to open with a duet from Bruce Willis and Danny Aiello, singing the Bing Crosby classic while robbing an auction house, was pretty poisonous. It’s not the only thing that contributed to the film’s lack of success, but it was certainly the first low point of the action comedy, and it comes early enough that it may have turned audiences off from the get go. Maybe it could have worked a little better without the non-diegetic music accompaniment, but it’s unlikely to have been a popular idea anyway.

“Prom Tonight” in Not Another Teen Movie (2001)

We’ll give this number some credit for lampooning High School Musical a whole five years before the tween sensation even existed, but otherwise it’s an unfunny and unnecessary bit that begins as a Grease parody and then loses its aim and falls apart. Basically it’s just an excuse to beat the audience over the head with character arcs that were already overstated and jokes that were beyond tired (by the way, there’s an animated bluebird here, too). Making matters worse, it killed our respect for Ben Folds, who co-wrote the tune. It would have been far more appropriate, though not necessarily hilarious anyway, to get Weird Al to write a parody version of a Simple Minds or Thompson Twins song to play over a montage filled with visual plot point indicators and sight gags.

“The Penis Song” in The Sweetest Thing (2002)

Here’s another movie that has a lot of things going against its appeal, but the scene in which Cameron Diaz, Christina Applegate and Selma Blair belt out an ode to big penises in a crowded restaurant takes the cake. We’re all for a female appropriation of the typically male-oriented crass comedy, and would even overlook a simple song about male anatomy performed by a trio of Sex and the City wannabes. However, the moment just loses us completely when the ladies nonchalantly notice that their ditty is “a thing” and the rest of the diners (including men) around them join in for the celebration. It’s not even a matter of gender, either, as we’d no more want to see/hear a musical number about tight vaginas in an Adam Sandler movie.

“Fever” in Spider-Man 3 (2007)

There’s no singing involved (Kirsten Dunst is thankfully cut off before she can begin), but Tobey Maguire’s ridiculous dance sequence — you know, the one that made the Spidey franchise totally nuke the fridge to kingdom come — still counts as a musical number given how much it escapes reality (even the fantastical reality within the context of a superhero movie) for a few moments of gratuitous, interruptive performance. There’s not much place for a scene like this in a comic book franchise that was formerly taken quite seriously for the genre. But Sam Raimi for some reason goes there, plus he gives us a very unwatchable, emo-creepy version of Peter Parker to boot. We’ll go so far as to say this scene makes Spider-Man 3 a more embarrassing superhero movie than Superman IV, the unreleased Fantastic Four and the Joel Schumacher-directed Batman installments combined.