My Favorites...
Heldorado (starring Roy Rogers)
The Las Vegas Story (Jane Russell)
Diamonds are Forever (Sean Connery)

and...
Eighteen and Anxious
Painting the Clouds with Sunshine
Las Vegas Nights
Meet me in Las Vegas
Pink Cadillac (o.k. that one is Reno )
Heat
Sister Act
The one starring Barbara Stanwyck, that I can't think of the name of (Mark Erickson has a lobby card)

Oh...and there's an episode of Charlie's Angels "Angels in Vegas". Dan Tanna is introduced in that episode.

Annnnnnd...another one waaay high on the favorites list...the set of 4 tapes from A&E. That's probably my #1 favorite!