DIFFERENCE in the 68 version vs the re-release 1977 / VHS, DVD, Blu-ray
It's a shame that BARBARELLA was altered from it's original 1968 release but it was. The opening titles are different and were tamed down for the 1977 re-release version. Unfortunately, this is the version that exists today in all formats. VHS, DVD and Blu-ray.
The original "floating titles" show more of a bare Fonda. The title for DAVID HEMMINGS for example. The letters in the re-re-lease newly titled "BARBARELLA QUEEN OF THE GALAXY where bumped up and burned brighter so that Fonda's vagina would not be visible which is was in the 68 version. Also, the floating letters in the 1968 version hit, bounce off and break off of Fonda's nipples into dozens of pieces. This was completely altered and changed for re-release version.
https://www.youtube.com/watch?v=es4GFO4KIB8