Viacom (NYSE: VIA) and Hasbro (NYSE: HAS) are living it up this summer. Transformers: Revenge of the Fallen is doing fantastic business. The sequel is on its way to a domestic take of $400 million. And now, just this past weekend, the two companies have scored with G.I. Joe: The Rise of Cobra.

According to Boxofficemojo, Joe came in first with about $56 million as of early estimates available at the time of writing. That was more than enough to beat the second-place film, Sony's (NYSE: SNE) Julie & Julia. The latter cooked up around $20 million. Disney's (NYSE: DIS) G-Force came in third with $9.8 million.

According to Boxofficemojo, Harry Potter and the Half-Blood Prince was the top film at the domestic box office over the three-day weekend. I'm sure this didn't surprise Time Warner (NYSE: TWX) shareholders. The latest installment of the popular fantasy series took in about $79 million as of early estimates. However, Prince actually opened last Wednesday. If you add in monies derived from the Wednesday and Thursday showings, you've got a gross of about $159 million so far.

This compares favorably to Harry Potter and the Order of the Phoenix, which opened in July 2007. Phoenix made just under $140 million during its five-day debut. I like such growth. It shows that the franchise retains a good quantity of demand.

So, earlier in the week, I discussed Michael Bay and his freak-out with Viacom, Inc. (NYSE: VIA) over the marketing quality on his latest film, Transformers: Revenge of the Fallen. Turns out Mike had nothing to worry about.

This film is doing great. At the time of this writing, the film was estimated to have grossed over $60 million on its opening day, which was this past Wednesday. Now, I hate talking about the breaking of this record and that record. Hollywood loves to point out that Movie X achieved the highest gross for a film released on a cloudy day in late September when the moon was full and a new supernova was spotted in the constellation of Cygnus. I'd rather talk about how much profit was achieved, and how much return on capital was recorded (too bad media companies don't have to reveal such data). Nevertheless, I'll give Viacom and Fallen credit. It apparently scored the biggest Wednesday opening ever, and it should theoretically have a great weekend, assuming word of mouth is good. So far, I've only heard superlative things about this particular piece of celluloid, and I know of one person who immediately consulted her cell phone to schedule a time to see the picture with her friends when she heard how awesome it was.

Now, here is an interesting little spat. Michael Bay, according to The Hollywood Reporter, is upset with Viacom (NYSE: VIA). Why? Well, there's a movie coming out this week called Transformers: Revenge of the Fallen. It's the sequel to the big summer hit from a couple years back that brought the Transformers brand into the multiplex culture. Bay directed both projects. And he apparently has taken a tantrum, a little baby-like tantrum, over the marketing of the new film.

The Reporter article, which talks about the TMZ.com post that brought an email Bay wrote in May to the world's attention, says that Bay believes the quality of the marketing support so far on the second Transformers is way below par. He feels no buzz equity surrounding the movie. He doesn't think that an appropriate zeitgeist of support has been synthetically manufactured by the powers that be at Paramount. And he wonders if it might have to do with money: "I cannot figure if this is a cash issue with your company?" Further, he proffers: "Right now we are not an event. We are just a sequel, which is different."