Movement for Reform Judaism was created in 1958.

In between the Orthodox and Reform Jewish communities is the Conservative movement, although, the Conservative movement is closer to Orthodox than Reform.

No. Reform Judaism is a specific Jewish movement. It is one of the progressive movements, but Humanist Judaism, Reconstructionist Judaism and the Jewish Renewal Movement each have a legitimate claim to being progressive, and even Conservative Judaism has a claim to the title. The distinction between progressive Judaism and liberal Judaism is more than a bit vague.

Reform Judaism was a movement that started in the 1820s and rejected much of the fundamentalism of traditional Orthodox Judaism.

In Reform Judaism, cremation is permitted but traditional burial is strongly recommended. This violates Orthodox Jewish teachings which hold that burial is required.

Read more here at the Reform Movement's Website.