30 Is a Dangerous Age, Cynthia 1968

Synopsis:

A 29-year old aspiring composer—still single and without any romantic prospects—vows to both marry and write a hit musical before he turns 30. Director Joseph McGrath's 1968 British comedy stars Dudley Moore, Suzy Kendall, Eddie Foy Jr. and Patricia Routledge.

Directed by: Joseph McGrath
Written by: Dudley Moore & Joseph McGrath & John Wells
Runtime: 85 minutes
Tagline: If you haven't made it by the time you're 30, you never will....ask anybody!
Cast:
Dudley Moore
Dudley Moore
Rupert Street 
Eddie Foy Jr.
Eddie Foy Jr.
Oscar 
Suzy Kendall
Suzy Kendall
Louise Hammond 
John Bird
John Bird
Herbert Greenslade 
Duncan Macrae
Duncan Macrae
Jock McCue 
Patricia Routledge
Patricia Routledge
Mrs. Woolley