The title "Comin' at Ya!" (1981) could refer to the slavers coming at the couple to cause havoc or to the protagonist coming after the slavers to save his bride, but it definitely refers to the 3D overkill wherein various objects are constantly thrust at the screen: beans, bats, spears, flaming arrows, etc. even a baby's bottom. It was the first major release with 3D effects in 17 years and, being successful at the box office, paved the way for other 3D flicks of the early 80s. Even without 3D glasses, as long as you have a relatively large widescreen TV the movie still entertains on this level.
Tarantino obviously ripped-off the plot of "Comin' at Ya!" for his "Kill Bill" (2003). The style & content are reminiscent of Leone's "The Good, the Bad and the Ugly" (1966), but has better cinematography, superior colors, more action and doesn't overstay its welcome. Unfortunately, like all Leone-styled Spaghetti Westerns, the characters are either caricatures (the slaver brothers) or cardboard thin (the hero & his wife), which makes 'em uninteresting. There's barely any dialogue with no verbiage at all until almost the 13-minute mark.
Some people call "Comin' at Ya!" garbage, obviously because of the sadistic brutalities and horrific components (e.g. the rat attack), but there's an undeniable artistic genius to the filmmaking. For its DVD release (2016), the digital transfer was subjected to CGI alterations. The most obvious of these was the changing of some shots to B&W with one or two elements of color within the shot. I thought this improved the film.
The film runs 1 hour, 28 minutes, and was shot in Desierto de Tabernas, Almería, Andalucía, Spain.