Smart Alec is a 1951 British crime film directed by John Guillermin and starring Peter Reynolds.

Alec asks him to look out of the window to see if his uncle is in his favourite spot on a hot day like this, sitting on his balcony, and Sir Randolph confirms that he is.

Sir Randolph confirms Alec's statement that he was only out off the room for a few seconds, which is time enough for him to have shot his uncle from the window.

However, the police surgeon finds no bullet in the body or in the room, and Sir Randolph's testimony proves that Alec did not have enough time to go to his uncle's flat and kill him.

The police find a hidden gun, which Alec claims he hid because he didn't have a license, but since there is no bullet, they cannot prove that this is the murder weapon.

Alec then adds another layer to his alibi by revealing that Judith was in a large cupboard throughout his conversation with the commissioner, which she, a secretary, took down in shorthand.

But first, Alec calls Sir Randolph, the police inspector and sergeant, and Uncle Eddie's lawyer to the flat, and is surprised when Judith also turns up.

Alec tries to escape in his car, but had forgotten that the flats' porter had the keys, and starts to run through the streets, with the police in pursuit.

[4] The Monthly Film Bulletin wrote: "In this comedy thriller the absurdity and naiveté of the story is far surpassed by that of the acting.