What is the new movie where people can go into other peoples dreams not Dreamscape?

You're likely thinking of the movie "Inception" (2010) directed by Christopher Nolan. In this film, a team of specialists can enter people's dreams to steal information or implant ideas.

While "Dreamscape" (1984) also explores the concept of dream manipulation, "Inception" is a much more recent and popular film that specifically focuses on the ability to enter and interact within other people's dreams.