If the clip is for the purpose of face-to-face teaching or critique (e.g., your presentation is on a style of editing used in the movie), a reasonably short, properly attributed excerpt should be defensible under fair use. Other uses would require permission from the copyright holder.
Showing a movie without sound would still be considered a public performance, which would require a license.
A presentation theme is what tells what something is about. Ex: a movie
It depends on the type of use. Certain limited educational and commentary uses, for example, may be defensible under fair use.
Contact the movie company. The copyright holder, or designated agent, is the only one who can legally do anything about a copyright infringement.
The movie probably has copyright in it. Youtube doesn't allow copyright.
Yes, showing a movie in class without the appropriate licensing can be a violation of copyright laws. It is important to obtain the necessary permissions or license to show copyrighted material in educational settings to avoid any legal issues.
Not legally, unless you own the copyright or have obtained a license from the copyright owner.
The book has a copyright. The music has a copyright. The musical production has copyright. The movie has a copyright. The sound track has a copyright. Music not used in the movie has copyright. The play was first produced on Broadway in 1957, meaning it is copyrighted until 95 years later. The movie was produced in 1962 and has 95 years of copyright. The sound recordings of the music produced prior to 1973 have no federal copyright but are protected by state laws until 2067, not including those works that were also part of the 1962 dramatic audiovisual work, which are covered by federal copyright for 95 years.
Paramount.
Copyright for a completed movie usually resides with the company that produced the film.
The 1952 movie is protected by copyright, and will likely be protected through 2047.
If you transmit a copyright photo, movie, or music file then copyright is involved. It's the act of copying, not the means, that counts.