Chaplin & Gene Tierney at a party at Marion Davies' home, c.1951

Tierney was probably best-known for portraying the title character in Laura (1944), a film whose score (and famous title song) was composed by David Raksin, who was Chaplin's musical assistant on Modern Times (1936)

Chaplin watches a Circle Theater performance of The Doctor In Spite Of Himself

Charlie was closely associated with the Circle Theater in the late 1940s—directing plays (without credit) and allowing access to props from his movies. Charlie’s son, Sydney, was one of its founding members (Charlie, Jr. was also a member for a brief time).

Kathleen Freeman is addressing the audience, which includes such familiar faces as:
Elizabeth Taylor (front row, far right), Roddy McDowell is next to Taylor, Gene Tierney
 is seated between Charlie and Oona. Constance Collier is on Oona's left.
Co-founder of the Circle Theater, Jerry Epstein, is on Charlie's right.