I'll Never Forget What's'isname (1967)

I'll Never Forget What's'isname (DVD box title: I'll Never Forget What's 'Isname) is a 1967 British film directed and produced by Michael Winner. It stars Oliver Reed as disillusioned London advertising executive Andrew Quint, who revolts against his boss, Jonathan Lute (Orson Welles), and escapes into Swinging London.

More at Wikipedia.

Cast:

• Harry Andrews
• Carla
• Chaplain
• Michael Cornwall
• Georgina Elben
• Marianne Faithfull
• Headmaster
• Josie
• Kelloway
• Jonathan Lute
• Charles Maccabee
• Nicholas
• Andrew Quint
• Louise Quint
• Young Andrew Quint
• Oliver Reed
• Gerald Sater
• Susannah
• Walter
• Orson Welles
• Carol White