Co-producing the film is Happy Madison, the company owned by Sandler, who has been a compatriot of Schneider's since they met early in their careers, as mutually struggling stand-up comedians in Los Angeles.
Can we infer the following?
Sandler and Schneider knew each other before Sandler became successful.

Select from: + Yes; + It's impossible to say; + No;
The answer is:
Yes