The single best place to find orphaned films from the 1990s is the Internet Archive. Users have uploaded VHS rips of The Dinner Party (1994). Because the film is technically "orphaned" (no active copyright holder pursuing distribution), these uploads often remain up under fair use/abandonware arguments.

The most overlooked resource in the "free" debate is your local public library. the dinner party 1994 free

To summarize your options for watching "The Dinner Party" (1994) without spending money: The single best place to find orphaned films