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Interestingly random network with searching the term "dreamworks+fifth+movie+wikileaks" on google from noisebridge
The "Why did this happen?" link displays...
This page appears when Google automatically detects requests coming from your computer network which appear to be in violation of the Terms of Service. The block will expire shortly after those requests stop. In the meantime, solving the above CAPTCHA will let you continue to use our services.
This traffic may have been sent by malicious software, a browser plug-in, or a script that sends automated requests. If you share your network connection, ask your administrator for help — a different computer using the same IP address may be responsible. Learn more
Sometimes you may be asked to solve the CAPTCHA if you are using advanced terms that robots are known to use, or sending requests very quickly.
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<head><meta http-equiv="content-type" content="text/html; charset=utf-8"><meta name="viewport" content="initial-scale=1"><title>http://www.google.com/search?q=dreamworks+fifth+movie+wikileaks&oq=dreamworks+fifth+movie+wikileaks&aqs=chrome..69i57.12987j0&sourceid=chrome&ie=UTF-8</title></head>
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To continue, please type the characters below:<br><br>
<img src="/sorry/image?id=3085405801754557142&hl=en" border="1" alt="Please enable images"><br><br><form action="Captcha" method="get"><input type="hidden" name="continue" value="http://www.google.com/search?q=dreamworks+fifth+movie+wikileaks&oq=dreamworks+fifth+movie+wikileaks&aqs=chrome..69i57.12987j0&sourceid=chrome&ie=UTF-8"><input type="hidden" name="id" value="3085405801754557142"><input type="text" name="captcha" value="" id="captcha" size="12" style="font-size:16px; padding:3px 0 3px 5px; margin-left:0px;"><input type="submit" name="submit" value="Submit" style="font-size:18px; padding:4px 0;"><br><br><br></form>
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<b>About this page</b><br><br>Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. <a href="#" onclick="document.getElementById('infoDiv').style.display='block';">Why did this happen?</a><br><br>
<div id="infoDiv" style="display:none; background-color:#eee; padding:10px; margin:0 0 15px 0; line-height:1.4em;">
This page appears when Google automatically detects requests coming from your computer network which appear to be in violation of the <a href="http://www.google.com/accounts/TOS">Terms of Service</a>. The block will expire shortly after those requests stop. In the meantime, solving the above CAPTCHA will let you continue to use our services.<br><br>This traffic may have been sent by malicious software, a browser plug-in, or a script that sends automated requests. If you share your network connection, ask your administrator for help — a different computer using the same IP address may be responsible. <a href="http://www.google.com/support/bin/answer.py?answer=86640">Learn more</a><br><br>Sometimes you may be asked to solve the CAPTCHA if you are using advanced terms that robots are known to use, or sending requests very quickly.
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IP address: 199.188.193.9<br>Time: 2013-09-18T08:04:42Z<br>URL: http://www.google.com/search?q=dreamworks+fifth+movie+wikileaks&oq=dreamworks+fifth+movie+wikileaks&aqs=chrome..69i57.12987j0&sourceid=chrome&ie=UTF-8<br>
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possible answer
You're doing this search from Noisebridge. Using Occam's razor, perhaps someone there ran some automated queries against Google and the message means precisely what it says? It seems unlikely it is related to your query. (Did you not try any other queries?)
FWIW this happens quite frequently when using Google via Tor; sometimes they won't even offer a captcha and just say "sorry, try again later". (Solution is to click "New Identity" to switch to a different Tor exit relay, or to just use a different search engine such as startpage.com or duckduckgo.com).