Kate Winslet besides being very beautiful also a very talented actresses. She has been in many movies.
Listed in order of best to worst. (of the movies i have seen)

Heavenly Creatures
I enjoyed this movie greatly. Why did i list it higher than Titanic you might wonder. Besides the great acting done by both Kate and Melanie Lynskey, it also had a great story line.(it was nominated for best original screenplay) It is a very different movie, twisted you might say that is the main reason i like it so much.

Gallery of Kate In Heavenly Creatures (12 Pics)
Heavenly Creatures movie posters (3 Pics)

Titanic
The highest grossing movie of all time(or soon to be), nominated for 14 Oscars (won 11), and frankly one of the best movies made in a long time. James Cameron did a great job in the filming and directing of this film. Kate did a wonderful job of acting the part of Rose. It is a must see.

Gallery of Kate In Titanic (10 Pics)
Gallery of Titanic movie posters (2 Pics)

Jude
Jude is a different kind of film. It is kinda slow but has a good twist in the end that makes it worth watching.

Gallery of Kate in Jude (14 Pics)
Gallery of Jude movie posters (5 Pics)

Movies that i havnt seen but they got to be half way good cause hey Kates in them.
Sense and Sensablity
Gallery of Kate in Sense and Sensablity (10 Pics)
Gallery of Sense and Sensablity movie posters (2 Pics)

Hamlet
Gallery of Kate in Hamlet (10 Pics)
Gallery Hamlet movie programs (4 Pics)

A Kid in King Aurthors Court
Gallery of Kate in A Kid in King Aurthors Court(8 Pics)