Zoe Saldana has a ''huge amount of respect'' for Britney Spears.

The 'Guardians of the Galaxy' actress, 36 - who starred with the blonde beauty in the 2002 movie 'Crossroads' - has praised the 32-year-old singer's ''humble'' attitude.

Speaking on 'Watch What Happens Live', she told Andy Cohen: ''She was the one big, big celebrity that I met when I was starting to work in Hollywood who literally was humble. I do believe that people and children gravitate to good energy, and she's definitely an abundance of that.''

The brunette beauty also jumped to Britney's defence after a caller asked her what she thought of the recent leaked version of her track 'Alien' without auto-tune.

She said of the leak: ''That's mean.

''I'm pretty sure that 80 percent of our musical artists would be mortified if they were caught singing without auto-tune. She was the only pop star at that time - and I can name a lot of prominent figures right now that today are more famous than Britney - that literally got to where they were at by hating on Britney a lot.

''Because it was cool at one time to really just diss her. And Britney never did that.''