That Dangerous Age

That Dangerous Age is a 1949 British romance film directed by Gregory Ratoff and starring Myrna Loy, Roger Livesey and Peggy Cummins. It was adapted from the play Autumn by Margaret Kennedy and Ilya Surguchev. The film was released under the alternative title of If This Be Sin in the United States. It was shot at Shepperton Studios and on location in London and Capri. The film's sets were designed by the art director Andrej Andrejew.

Plot
Sir Brian Brooke, a famous attorney, collapses while acting as defense counsel in a high-profile murder trial. Doctor Thorvald informs his (second) wife Cathy that Brian needs to rest for six months or he will die; Brian is also temporarily blind. They and Brian's daughter Monica relax in Italy.

They receive an anonymous letter accusing Cathy of carrying on an affair with Brian's junior partner, Michael Barcleigh. Brian's lawyer instincts makes him believe it, until Cathy reveals that Michael has confided to her that he is in love with Monica. Brian is apologetic, and delighted by the news. However, Cathy has lied, and the letter is correct.

Cast

 * Myrna Loy as Lady Cathy Brooke
 * Peggy Cummins as Monica Brooke
 * Richard Greene as Michael Barcleigh
 * Roger Livesey as Sir Brian Brooke
 * Elizabeth Allan as Lady Sybil
 * Gerard Heinz as Doctor Thorvald
 * Jean Cadell as Nannie
 * G. H. Mulcaster as Simmons
 * Margaret Withers as May Drummond
 * Ronald Adam as Prosecutor
 * Wilfrid Hyde-White as Mr Potts
 * Henry Caine as Mr Nyburg
 * Patrick Waddington as Rosley
 * Edith Sharpe as Angela Caine
 * George Curzon as Selby
 * Robert Atkins as George Drummond
 * Phyllis Stanley as Jane
 * Daphne Arthur as Margot
 * Martin Case as John
 * Barry Jones as Arnold Cane
 * Louise Lord as Ellen
 * Nicholas Bruce as Charles
 * William Mervyn as Nicky
 * André Morell as Doctor McCatcheon

Comic book adaption

 * Eastern Color Movie Love #2 (April 1950)