“Becky Sharp” was the first full-length film to use what innovation?

Here is the question :

“BECKY SHARP” WAS THE FIRST FULL-LENGTH FILM TO USE WHAT INNOVATION?

Here is the option for the question :

• Three-strip Technicolor
• Talking actors
• 3D glasses
• Stereo sound

The Answer:

And, the answer for the the question is :

Explanation:

[STC0012089]. The 1935 film “Becky Sharp,” which was based on William Makepeace Thackeray’s novel “Vanity Fair,” was the first to be shot entirely in three-strip Technicolor, although neither the storyline nor the acting were particularly well received. Previous attempts at color film yielded images that were washed out and not particularly lifelike. Technicolor involved recording on separate reels of red, blue, and green light from the same enormous camera and compositing the colors together later.