user14149: I am thinking about make some story video and I would leverage some general footage -- timelapses, cars passing streets, etc. Is there some service which provides such assets? I think I saw something like "video building block" service or something like that. I don't need this service specifically, but just something where could I download/buy such video assets shoot by somebody else.

user13978: 
http://www.gettyimages.de/footage
https://www.shutterstock.com/video/
http://www.dissolve.com/
http://videohive.net/

to name a few, probably there are much much more.

user6079: Well, I think your best source to tell stories with would be public domain videoes. 
Either videos placed directly into the public domain or those whose copyright has expired and are now in the public domain
see (a good resource):
http://www.pond5.com/free
For example, the charlie chaplin videos, all the silent movies, unfortunately all movies including the 70's should have been in the public domain by now if it wasn't for the walt disney copyright extension law. Oh well, we take things as they are. Lots of great resources to be found in the public domain.
other sites:
(Public domain films)
https://www.loc.gov/rr/mopic/pubdomain.html
https://archive.org/details/stock_footage

14149: <p>I am thinking about make some story video and I would leverage some general footage -- timelapses, cars passing streets, etc. Is there some service which provides such assets? I think I saw something like "video building block" service or something like that. I don't need this service specifically, but just something where could I download/buy such video assets shoot by somebody else.</p>
 13978: <ul>
<li><a href="http://www.gettyimages.de/footage" rel="nofollow">http://www.gettyimages.de/footage</a></li>
<li><a href="https://www.shutterstock.com/video/" rel="nofollow">https://www.shutterstock.com/video/</a></li>
<li><a href="http://www.dissolve.com/" rel="nofollow">http://www.dissolve.com/</a></li>
<li><a href="http://videohive.net/" rel="nofollow">http://videohive.net/</a></li>
</ul>

<p>to name a few, probably there are much much more.</p>
 6079: <p>Well, I think your best source to tell stories with would be public domain videoes. </p>

<p>Either videos placed directly into the public domain or those whose copyright has expired and are now in the public domain</p>

<p>see (a good resource):</p>

<p><a href="http://www.pond5.com/free" rel="nofollow">http://www.pond5.com/free</a></p>

<p>For example, the charlie chaplin videos, all the silent movies, unfortunately all movies including the 70's should have been in the public domain by now if it wasn't for the walt disney copyright extension law. Oh well, we take things as they are. Lots of great resources to be found in the public domain.</p>

<p>other sites:</p>

<p>(Public domain films)
<a href="https://www.loc.gov/rr/mopic/pubdomain.html" rel="nofollow">https://www.loc.gov/rr/mopic/pubdomain.html</a></p>

<p><a href="https://archive.org/details/stock_footage" rel="nofollow">https://archive.org/details/stock_footage</a></p>
