What movie does Jackie Chan do sit ups?

Jackie Chan does sit ups in many of his movies! It's hard to pinpoint one specific movie, as he often incorporates physical training into his action sequences.

However, a few movies where he does sit ups that come to mind are:

* Police Story (1985): Chan does a famous scene where he does sit ups on a broken window pane.

* Rumble in the Bronx (1995): He does sit ups as part of his daily workout routine, which is shown in the film.

* The Legend of Drunken Master (1994): Chan is seen doing a variety of exercises, including sit ups, in his training montage.

If you're looking for a specific instance, perhaps describe the scene you remember, and I might be able to give you a more precise answer.