Does Adam Sandler write his own movies?

Adam Sandler does not write all of his own movies, but he often collaborates on the writing and is involved in the creative process.

Here's a breakdown:

* He does write some of his own movies: Sandler has writing credits on several of his films, like "Billy Madison" and "Happy Gilmore."

* He collaborates heavily: He often co-writes with close friends and collaborators, like Tim Herlihy, Robert Smigel, and Judd Apatow.

* He has a strong influence: Sandler has a very distinct comedic voice and often brings his own jokes and ideas to the table, even if he's not the sole writer.

So, while he doesn't always write the whole script himself, he's definitely a major creative force behind many of his films.