- How old do you think he is?
- Twenty-two, I'd say.

3 seconds sound clip from the The Picture of Dorian Gray movie soundboard.

You can hear this line at 01:33:24.179 in the Blu-ray version of the movie.

Quote context

[...]

- Why are you called Sir Tristan?

- It happens to be my name.

- You're lying. Eighteen years I've been looking for you.

- How old do you think I am?

- Why didn't you murder him? They could only have hanged you for it.

- He's not the man I'm looking for. He's too young.

- How old do you think he is?

- Twenty-two, I'd say.

- What are you laughing at?

- Dorian Gray has looked 22 for the last 20 years.

- What did you say his name was?

- When a man says he's exhausted life, you may be sure that life has exhausted him.

[...]