Lauren Bacall is once said to have done a "double-take" in regards to Robert Sacchi's physical resemblance to Humphrey Bogart.
Touring the USA, Robert Sacchi played Humphrey Bogart in over 1000 performances of Woody Allen's "Play It Again, Sam".
The central character of Sam Marlow played by Robert Sacchi is named after two classic detective characters played by Humphrey Bogart: Philip Marlowe from Dashiell Hammett's The Big Sleep (1946) and Sam Spade from Raymond Chandler's The Maltese Falcon (1941).