Brit Shows for Depo -- Then Splits

Britney Spears showed up for her deposition for a grand total of about 45 minutes. The popwreck, who wore a hot fuchsia dress with Christian Louboutin shoes, clearly did not sit for all the questions Mark Vincent Kaplan wanted to throw at her.

For some reason, Britney left -- and we're trying to find out why. There's a news conference scheduled.

Stay tuned ...